No abstract available

[en] This appendix contains all source code for the Interactive Control Station. The following file contents are included: ics.tcl; icserver.tcl; icsgraph.tcl; lib ics.tcl

[en] Highlights: • Examined the backflow characteristics of neutral particles in a detached plasma. • TPD-Sheet IV with a Super-X-divertor-like target was used. • The effect caused by the divergent magnetic field to a generation of the detached plasma is small. • A backflow-suppressing “plasma plugging” effect was confirmed. • It is suggested that there is an optimal value of magnetic-field divergence for preventing backflow of neutral particles. - Abstract: We confirm the neutral-particle backflow characteristics of detached plasma with a Super-X divertor-like target using a linear divertor simulator TPD-Sheet IV. The effect of a divergent magnetic field upon the generation of the detached plasma is found to be weak. Under a divergent magnetic field, the heat load on the target plate with a Super-X divertor-like target is suggested to be reduced by 3–5 times compared with a case in which a conventional diverter (CD) is used. In addition, it is suggested that there is an optimal magnetic-field divergence that prevents backflow of neutral particles.

[en] LISA Pathfinder represents a unique challenge in the development of scientific spacecraft-not only is the LISA Test Package (LTP) payload a complex integrated development, placing stringent requirements on its developers and the spacecraft, but the payload also acts as the core sensor and actuator for the spacecraft, making the tasks of control design, software development and system verification unusually difficult. The micro-propulsion system which provides the remaining actuation also presents substantial development and verification challenges. As the mission approaches the system critical design review, flight hardware is completing verification and the process of verification using software and hardware simulators and test benches is underway. Preparation for operations has started, but critical milestones for LTP and field effect electric propulsion (FEEP) lie ahead. This paper summarizes the status of the present development and outlines the key challenges that must be overcome on the way to launch.

[en] As the number of large reservoirs has grown rapidly, drawdown of water level has become a major factor in inducing landslides. A new simulator was developed to simulate the in-flight drawdown in a centrifuge model test. A series of centrifuge model tests was conducted on slopes with different gradients under drawdown conditions. The failure mechanism was obtained via an integrated analysis of deformation and failure processes according to the displacement histories of the slopes measured by the image capture and displacement measurement system. The slip surface, with slippage failure, was developed from the top downwards due to the drawdown. The displacement histories of the sliding body could be divided into three stages with the increase rate changing from small to large and finally becoming negligible. The deformation of the slope only appeared within a limited zone with a nearly invariable boundary surface during the drawdown. The boundary surface moved closer to the slope surface with the deceasing slope gradient. The drawdown caused a significant coupling process of local failure and deformation localization, which developed from the upper part to the lower part. The upper part of the sliding body behaved as a rigid body, and the lower parts exhibited significant deformation after the slip surface formed, which should be reasonably captured in a stability analysis of a slope under drawdown conditions.

[en] In order to optimize future dismantling operations of nuclear installations virtual reality allows the validation of predefined scenarios and their adequacy with the environment. CEA uses an immersion and interactive room to validate maintenance and dismantling operations. The equipment of this room is composed of a video wall that gives a 3-dimensional view of the virtual environment, and of a system for motion capture. For the simulation of handling operations a haptic interface has been designed, it allows the user to receive a tactic and effort-feeling feed back. The immersion is completed by a phonic ambience that creates sounds for virtual operations. The use of the immersion room for optimizing the dismantling of a spent fuel dissolver (MAR 200) used in hot cell is presented. (A.C.)

[en] A new conceptual design of a fusion reactor blanket simulation facility, the Fusion Reactor Blanket Facility (FRBF), has been developed. The design is based on principles successfully employed in the Purdue Fast Breeder Blanket Facility (FBBF), where substantial differences between neutronics predictions and experimental results have been found. These discrepancies can be nearly fully attributed to calculation methods, not to experimental results, because in the FBBF design deficiencies that could affect experimental results are minimized. The FRBF design was developed with the same goal of reducing design deficiencies. The conceptual design of this FBBF-analog is presented. Essential features are a cylindrical geometry and a -14-MeV neutron source with a cosine-shaped axial intensity distribution

[en] The dynamics of plasma and the reversal flow of neutral particle are investigated experimentally in a closed-divertor simulator. It is observed that the ionized front periodically moves in and out of the closed divertor region, as the neutral gas is injected sufficient amount for achieving plasma detachment in the divertor region. Such movement can be related to the reversal flow of the neutral particles injected. (author)

[en] A circuit simulation analysis and diagnosis methods are used to diagnose instruments in detail when they give apparently abnormal readings. In this paper, a new simulator for analyzing the modeling of important circuits under SACs(severe accident conditions) has been designed. The realization of a one body system by using a one order command system in the LabVIEW and Pspice was used instead of a complex two body system. The program shows the output data from the circuit modeling according to a one order command system. The procedure for the simulator design was divided into two steps, of which the first step was the design of the diagnosis methods, and the second step was a circuit simulator for the signal processing tool and the special signal analysis tool. It has three main functions which are a signal processing tool, an accident management tool, and an additional guide from the initial screen. (authors)

[en] Model based control plays an important role for a modern accelerator during beam commissioning, beam study, and even daily operation. With a realistic model, beam behaviour can be predicted and therefore effectively controlled. The approach used by most current high level application environments is to use a built-in simulation engine and feed a realistic model into that simulation engine. Instead of this traditional monolithic structure, a new approach using a client-server architecture is under development. An on-line simulator server is accessed via network accessible structured data. With this approach, a user can easily access multiple simulation codes. This paper describes the design, implementation, and current status of PVData, which defines the structured data, and PVAccess, which provides network access to the structured data.